Since 1940, 4 pitchers are tied for winning the most games by a rookie, with 21 wins. The first three are Larry Jansen in 1947, Dave Ferriss in 1945 and Bill Voiselle in 1944.
Since 1940, 4 pitchers are tied for winning the most games by a rookie, with 21 wins. The first three are Larry Jansen in 1947, Dave Ferriss in 1945 and Bill Voiselle in 1944.